Synthesis and Characterization of Some Phenolic Resins for the Selective Removal of Radiostrontium

Samanta, Sudeep Kumar; Ramaswamy, M.; Misra, Β. M.

doi:10.1524/ract.1992.57.4.201

Cited by 16 publications

(5 citation statements)

References 5 publications

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“…28,29 So, phenolic resins have been used for extraction of heavy metals, [30][31][32][33][34][35] lanthanide metal ions, [36][37][38][39][40] and radionuclides. 29,[41][42][43][44][45][46][47][48] It is believed that polymers with a combination of diglycolamide derivatives and phenolic group can improve the existing sorbents system developed for REEs extraction. Therefore, herein we decribed the synthesis of novel phenol based copolymeric resins that incorporate diglycolamides derivatives.…”

Section: Introductionmentioning

confidence: 99%

Extraction and recovery of rare earths by chelating phenolic copolymers bearing diglycolamic acid or diglycolamide moieties

Arrambide

Arrachart

Berthalon

et al. 2019

Reactive and Functional Polymers

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Extraction and recovery of rare earth elements (REEs) have been studied using ion-exchange and chelating process thanks to phenol copolymeric resins. The ion-exchange and chelating resins have been prepared through an alkaline polycondensation reaction of phenolic diglycolamide derivatives with admixture of phenol, catechol or resorcinol in the presence of formaldehyde as crosslinker. The phenol copolymeric resins were fully characterized and involved in sorption experiments. The sorption experiments of rare earth elements have been investigated in different acidic conditions. Lanthanum (La), europium (Eu) and ytterbium (Yb) were chosen to represent the light, medium and heavy REEs respectively. Changes in the extraction properties of the copolymeric resins have been observed depending on the nature of chelating groups in the phenolic matrices and the extraction conditions. The results indicate that the synthesized materials are good sorbent for REEs with cation uptake capacity in the range 50-100 mg/g and in some cases above 150 mg/g.

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Section: Introductionmentioning

confidence: 99%

Extraction and recovery of rare earths by chelating phenolic copolymers bearing diglycolamic acid or diglycolamide moieties

Arrambide

Arrachart

Berthalon

et al. 2019

Reactive and Functional Polymers

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show abstract

“…In order to enhance the selectivity of such resins for metal ions, many attempts have been made over the years to incorporate complex-forming multidentate ligands into the polymer structure by covalent linking [1][2][3]. In a recent publication from this laboratory, the selective uptake of Sr(II) ions from sodium nitrate solutions by condensation polymers containing vicinal phenolic -OH groups was reported [4]. The sorption of Sr(II) ions has special significance in connection with the management of radioactive effluents generated at nuclear installations because ^Sr (t 1/2 = 28 y) is an important fission product and is highly radiotoxic because of its tendency to accumulate in bones.…”

Section: Introductionmentioning

confidence: 99%

Radiotracer Studies on the Uptake of Strontium by Poly(Styrene-DVB) Resins Containing Iminodiacetic Acid Groups

Samanta

1999

Radiochimica Acta

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The uptake of strontium has been studied using two commercially available chelating resins containing iminodiacetic acid functional groups. The resins have been characterized with respect to moisture content, swelling behaviour, ion exchange and chelating capacities. The effect of pH, sodium and strontium concentrations on the uptake of strontium has been determined by carrying out batch equilibration tests. The suitability of using such a resin for removal of radiostrontium from radioactive waste solutions has also been tested in laboratory-scale column experiments.

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“…The selective uptake of strontium from solutions containing various amounts of sodium was investigated using phenolic resins synthesized from catechol, gallic acid, and beta-resorcylicacid (Samanta et al 1992). Distribution ratiofor strontium were as high as 6580 for the catecholresorcinol-formaldehydepolymer in 1 M NaNO3 + 0.1 M NaOH solutions.…”

Section: Ion Exchange-phenolic Resinmentioning

confidence: 99%

Preliminary survey of separations technology applicable to the pretreatment of Hanford tank waste (1992--1993)

Lawrence¹,

Kurath²

1994

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The U.S. Department of Energy has established the Tank Waste Remediation System (TWRS) to manage and dispose of radioactive wastes stored at the Hartford Site. Within this program are evaluations of pretreatment system alternatives through literature reviews. The information in this report was collected as part of this project at Pacific Northwest Laboratory. _'_ A preliminary survey of literature on separations recently entered into the Hanford electronic databases (1992-1993) that have the potential for pretreatment of Hanford tank waste was conducted. Separation processes that can assist in the removal of actinides (uranium, plutonium, americium), lanthanides, barium, 137Cs,9°Sr, 129I,63Ni, and 99Tcwere evaluated. Separation processes of interest were identified through literature searches, journal reviews, and participation in separation technology conferences. This report contains brief descriptions of the potential separation processes, the extent and/or selectivity of the separation, the experimental conditions, and observations. Information was collected on both national and international separation studies to provide a global perspective on recent research efforts. Separation processes are listed in groups of unit operations under each constituent(s) to be separated. The separations processes described in this text are listed below in Table S. 1 with the author(s) and publication year. All these processes are deemed to have potential applicability to the treatment of tank waste. The processes that are recomme_.ded for further study are listed in Table S.2 with some of their positive attributes. These separations processes were selected on the basis that they have recently received attention for application in radioactive environments. The processes of interest include extraction, emulsion-liquid membranes, ion exchange, and ion flotation. These processes offer the potential for good separations, are relatively simple, and do not generate large amounts of secondary waste. The performance of these processes with actual tank waste can only be speculated since a limited amount of information is currently available. Information compiled in this study has enabled PNL to identify a broad spectrum of recent research efforts that may have potential applications for the pretreatment of Hanford tank waste. However, it was anticipated that many applicable articles would be omitted on a topic as broad as separations. Thus, it was the intent of this report to provide a representative cross-section of recent separations studies. The scope of this study does not provide an exhaustive survey but provides recent information on a broad scale. In part, it is the intent of this review to provide articles from which a more detailed search specific to each technology or constituent can be based. This study builds upon three detailed constituent reviews on cesium, strontium, and transuranic wastes completed during FY93. (a) Pacific Northwest Laboratory is operated for the U.S. Department of Energy by Battelle Memorial Institute...

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Synthesis and Characterization of Some Phenolic Resins for the Selective Removal of Radiostrontium

Cited by 16 publications

References 5 publications

Extraction and recovery of rare earths by chelating phenolic copolymers bearing diglycolamic acid or diglycolamide moieties

Extraction and recovery of rare earths by chelating phenolic copolymers bearing diglycolamic acid or diglycolamide moieties

Radiotracer Studies on the Uptake of Strontium by Poly(Styrene-DVB) Resins Containing Iminodiacetic Acid Groups

Preliminary survey of separations technology applicable to the pretreatment of Hanford tank waste (1992--1993)

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